CVE-2026-78839
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk42th percentile - higher than 42% of all known CVEs
Summary
An arbitrary file upload vulnerability in AppNitro MachForm v30 allows attackers to execute arbitrary code via uploading a crafted .phar file.
Risk Assessment
Arbitrary code execution can lead to full server compromise, data theft, or installation of malware.
Recommendation
Update MachForm to the latest version and restrict allowed file types.
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Original NVD description (English source)
An arbitrary file upload vulnerability in AppNitro MachForm v30 allows attackers to execute arbitrary code via uploading a crafted .phar file.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

